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//========================================================================
//
// gfile.h
//
// Miscellaneous file and directory name manipulation.
//
// Copyright 1996-2003 Glyph & Cog, LLC
//
//========================================================================
#ifndef GFILE_H
#define GFILE_H
#include <stdio.h>
#include <stdlib.h>
#include <stddef.h>
#if defined(_WIN32)
# include <sys/stat.h>
# ifdef FPTEX
# include <win32lib.h>
# else
# include <windows.h>
# endif
#elif defined(ACORN)
#elif defined(ANDROID)
#else
# include <unistd.h>
# include <sys/types.h>
#endif
#include "gtypes.h"
class GString;
//------------------------------------------------------------------------
// Get home directory path.
extern GString *getHomeDir();
// Get current directory.
extern GString *getCurrentDir();
// Append a file name to a path string. <path> may be an empty
// string, denoting the current directory). Returns <path>.
extern GString *appendToPath(GString *path, const char *fileName);
// Grab the path from the front of the file name. If there is no
// directory component in <fileName>, returns an empty string.
extern GString *grabPath(char *fileName);
// Is this an absolute path or file name?
extern GBool isAbsolutePath(char *path);
// Make this path absolute by prepending current directory (if path is
// relative) or prepending user's directory (if path starts with '~').
extern GString *makePathAbsolute(GString *path);
// Get the modification time for <fileName>. Returns 0 if there is an
// error.
extern time_t getModTime(char *fileName);
// Create a temporary file and open it for writing. If <ext> is not
// NULL, it will be used as the file name extension. Returns both the
// name and the file pointer. For security reasons, all writing
// should be done to the returned file pointer; the file may be
// reopened later for reading, but not for writing. The <mode> string
// should be "w" or "wb". Returns true on success.
extern GBool openTempFile(GString **name, FILE **f,
const char *mode, const char *ext);
// Create a directory. Returns true on success.
extern GBool createDir(char *path, int mode);
// Execute <command>. Returns true on success.
extern GBool executeCommand(char *cmd);
#ifdef _WIN32
// Convert a file name from Latin-1 to UTF-8.
extern GString *fileNameToUTF8(char *path);
// Convert a file name from UCS-2 to UTF-8.
extern GString *fileNameToUTF8(wchar_t *path);
#endif
// Open a file. On Windows, this converts the path from UTF-8 to
// UCS-2 and calls _wfopen (if available). On other OSes, this simply
// calls fopen.
extern FILE *openFile(const char *path, const char *mode);
// Just like fgets, but handles Unix, Mac, and/or DOS end-of-line
// conventions.
extern char *getLine(char *buf, int size, FILE *f);
// Type used by gfseek/gftell for file offsets. This will be 64 bits
// on systems that support it.
#if HAVE_FSEEKO
typedef off_t GFileOffset;
#define GFILEOFFSET_MAX 0x7fffffffffffffffLL
#elif HAVE_FSEEK64
typedef long long GFileOffset;
#define GFILEOFFSET_MAX 0x7fffffffffffffffLL
#elif HAVE_FSEEKI64
typedef __int64 GFileOffset;
#define GFILEOFFSET_MAX 0x7fffffffffffffffLL
#else
typedef long GFileOffset;
#define GFILEOFFSET_MAX LONG_MAX
#endif
// Like fseek, but uses a 64-bit file offset if available.
extern int gfseek(FILE *f, GFileOffset offset, int whence);
// Like ftell, but returns a 64-bit file offset if available.
extern GFileOffset gftell(FILE *f);
#endif
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